Looks expensive. Wonder how they are able to manage waves moving back and forth. One of the better designs I have seen is to build concrete structures that are

Looks expensive. Wonder how they are able to manage waves moving back and forth. One of the better designs I have seen is to build concrete structures that are partially submerged in the sea, to capture the air flow caused by rising tidal waves, and use it to run a wind turbine. Much less direct contact with sea water. Simpler construction and maintenance.